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  1. C

    White grains appear on old aluminum

    I think mineral deposits are what I have. It only started after I moved into a house with a well, never on city water. Also, I use the pot several times a week, so it builds overnight, not after a long exposure to air. If I dry the pot, it is reduced. Thanks for all the help.
  2. C

    Stovetop cooking with Pyrex Visions cookware?

    I also have been using Visions on the stove for years. Another good rule is always check for cracks before cooking, and don't preheat the burner. The pot has to start on a cold burner, and heat with it. An easy way to clean them is to always spray Pam into them first, and if you still have...
  3. C

    White grains appear on old aluminum

    Thanks for your reply. As for the soap, it has happened in the dishwasher, and washing by hand. I have used the 2 detergents for a long time. I hand washed and dried it today, and just checked. There is a small amount of the powder. I will check tomorrow to see if it gets worse overnight. It...
  4. C

    White grains appear on old aluminum

    Hi, I have a Presto pressure cooker from about 1952 that I believe is aluminum. I've had it for over a year, and use it all the time as a pot, only once as a pressure cooker. I hand wash it with liquid dish soap, but when I go to use it next, I find it covered with a coarse white powder-like...
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